The Wii Vitality Sensor made waves at E3 2009 as one of the most bizarre Nintendo add-ons of recent times, then all-but disappeared from gaming radars as Legend of Zelda: Skyward Sword and the 3DS drew all the focus in last year's show. The sensor's invisibility caused many to suggest Nintendo had quietly ditched the device, but president Satoru Iwata has confirmed the accessory is still very much alive and kicking, albeit calmly.